Apogee MQ-501 Gebruikershandleiding - Pagina 6
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SPECIFICATIONS
Calibration Uncertainty
Measurement Range
Measurement
Repeatability
Long-term Drift
(Non-stability)
Non-linearity
Response Time
Field of View
Spectral Range
Spectral Selectivity
Directional (Cosine)
Response
Azimuth Error
Tilt Error
Temperature Response
Uncertainty in Daily Total
Detector
Housing
IP Rating
Operating Environment
Meter Dimension
Sensor Dimensions
Mass
Cable
Calibration Traceability
Apogee MQ series quantum meters are calibrated through side-by-side comparison to the mean of four Apogee
model SQ-110 or SQ-120 transfer standard quantum sensors under high output T5 cool white fluorescent lamps.
The transfer standard quantum sensors are calibrated through side-by-side comparison to the mean of at least
three LI-COR model LI-190 reference quantum sensors under high output T5 cool white fluorescent lamps. The
reference quantum sensors are recalibrated on a biannual schedule with a LI-COR model 1800-02 Optical Radiation
Calibrator using a 200 W quartz halogen lamp. The 1800-02 and quartz halogen lamp are traceable to the National
Institute of Standards and Technology (NIST).
389 to 692 nm ± 5 nm (wavelengths where response is greater than 50 %)
Less than 10 % from 412 to 682 nm ± 5 nm (see Spectral Response below)
± 5 % at 75º zenith angle (see Cosine Response below)
-0.11 ± 0.04 % C
Anodized aluminum body with acrylic diffuser
0 to 50 C; less than 90 % non-condensing relative humidity up to 30 C; less than 70 % non-
condensing relativity humidity from 30 to 50 C; separate sensors can be submerged in water up
126 mm length, 70 mm width, 24 mm height
Approximately 0.17 m of two conductor, shielded, twisted-pair wire; additional cable available;
MQ-501
± 5 % (see calibration Traceability below)
0 to 4000 µmol m
Less than 0.5 %
Less than 2 % per year
Less than 1 % (up to 4000 µmol m
Less than 1 ms
180º
Less than 0.5 %
Less than 0.5 %
-1
(see Temperature Response below)
Less than 5 %
Blue-enhanced silicon photodidode
IP68
to depth of 30 m
24 mm diameter; 37 mm height
180 g
TPR jacket
-2
-1
s
-2
-1
s
)